Copeland Comfort Control (Alco) 097456 Safety Control

Protecting pressure-lubricated compressors demands precision, and the Copeland Comfort Control (Alco) 097456 (Model FD113-ZUK) delivers industrial-grade reliability. This oil pressure safety control monitors the net oil pressure across the pump, ensuring mechanical components receive adequate lubrication. Featuring a broad universal voltage range of 24-240Vac/Vdc, this unit integrates seamlessly into various control circuits without needing separate transformers. The adjustable pressure range of 4-65 PSID and 20-150 second adjustable electronic time delay allow technicians to fine-tune protection parameters, preventing nuisance trips during cold starts or brief pressure fluctuations while ensuring a hard shutdown if low pressure persists.

The FD113-ZUK kit includes two 36-inch capillary tubes with 1/4" flare nut connections for flexible mounting away from high-vibration areas. Its SPDT manual reset switch provides a dedicated alarm circuit (terminal 24) to alert operators immediately upon lockout. As a direct OEM replacement for P28NA-5, P45NCA-19, and S1-325-21463-000, this control is the standard for maintaining Copeland and Alco refrigeration systems.

Key Benefits for Contractors:

• Universal Compatibility: Operates on any supply from 24V to 240V AC/DC, reducing the need to carry multiple specialized controls on the truck.
• Precise Protection: The adjustable differential pressure switch ensures the compressor only runs when the net oil pressure meets manufacturer specs.
• Nuisance Trip Prevention: The electronic time delay provides stable timing unaffected by ambient temperature swings or voltage drops.
• Rugged Installation: Includes dual 36" capillaries to simplify connection to the oil pump and crankcase ports.
• Safety Lockout: Features a manual reset to ensure a technician inspects the system before restarting after an oil failure.

Common Questions:

What is the difference between the FD113-ZU and FD113-ZUK?
The "K" suffix indicates the inclusion of the capillary tube kit. The FD113-ZUK comes with two 36-inch capillaries and 1/4" flare nuts, whereas the base ZU model typically does not include the lines.

Can I use this to replace a Johnson Controls P28 or P45?
Yes, the 097456 is a cross-reference replacement for the P28NA-5, P28AA-18, and P45NCA-19. Always verify the specific PSID trip settings and time delay requirements of the compressor manufacturer during installation.

Does this control require a separate power source for the timer?
The unit features a factory-installed jumper that allows it to be powered from a single source. However, for specialized AEO-ready monitoring or separate alarm circuits, the jumper can be removed to isolate the lockout switch from the timer circuit.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

097456 is the cross for 060B205791